Monday, April 23, 2012

H-bridge Power

Tonight we found out the h-bridge does not have enough power to power to the d/c motor when there is any kind of friction like the ground. We are going to investigate this farther. When the wheel is in the air week get 3+V going to DC motor. When on ground in the beginning there at 150mV. We connected a 9v battery directly to the d/c motor and the car moved instantaneously. We test the other h-bridge again. It was lacking voltage power to drive the motor as well. We know it is power issue with the h-bridge. Our h-bridge powers our 3 sensors as well. We disconnect them hoping it would have an impact. Test failed, still could not move in the beginning by itself.
Posted by at

3 comments:

  1. George DimitoglouApril 25, 2012 at 2:13 PM

    You are saying you need a better battery?

    ReplyDelete
  2. RC ProjectApril 25, 2012 at 3:29 PM

    WE do not think that the battery is the issue. The connection from the H-Bridge to the dc motor does not have enough power running through it. The connection is only receiving .2 volts when the wheels aren't moving and 2.5 volts when the wheels are off the ground and turning.

    ReplyDelete
  3. George DimitoglouApril 25, 2012 at 9:44 PM

    OK, my hint did not work...I need to hear how you are going to fix it, what it is that you need to tune/change not the problem statement :)

    ReplyDelete

Subscribe to: Post Comments (Atom)